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Young cochlear implant users' response to delayed auditory feedback.

N Tye-Murray1

  • 1Department of Otolaryngology--Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City 52242.

The Journal of the Acoustical Society of America
|June 1, 1992
PubMed
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Cochlear implants can provide enough speech information for children to respond to delayed auditory feedback (DAF). Even children deafened before learning to speak showed this response, suggesting improved speech processing capabilities.

Area of Science:

  • Audiology
  • Speech-Language Pathology
  • Neuroscience

Background:

  • Delayed auditory feedback (DAF) is a phenomenon where speech production is altered by a time-delayed repetition of the auditory signal.
  • Cochlear implants (CIs) provide electrical stimulation to the auditory nerve, enabling sound perception for individuals with severe to profound hearing loss.
  • Understanding the extent to which CI users can process complex auditory feedback is crucial for optimizing speech rehabilitation.

Purpose of the Study:

  • To investigate if the signal from Cochlear Corporation's Nucleus cochlear implant can elicit a DAF response in children.
  • To determine if prelingually deafened children receiving cochlear implants later in speech development are susceptible to DAF.

Main Methods:

  • Ten children with Nucleus cochlear implants participated in the study.

Related Experiment Videos

  • Participants produced simple phrases under two conditions: normal auditory feedback and delayed auditory feedback (DAF).
  • Speech duration was measured for each participant under both conditions.

    • Main Results:

    • Three prelingually deafened children and two postlingually deafened children demonstrated significantly longer phrase durations when speaking with DAF compared to normal feedback.
    • Two of the prelingually deafened subjects who responded to DAF received their cochlear implants at age 5.
    • The findings suggest that the auditory signal from the Nucleus cochlear implant can convey sufficient speech information to induce a DAF effect.

    Conclusions:

    • The Nucleus cochlear implant's signal is capable of inducing a DAF response in pediatric users.
    • Prelingually deafened children, even those implanted later, can exhibit DAF susceptibility, indicating functional auditory feedback processing.
    • These results highlight the potential for DAF paradigms in assessing and potentially improving speech production in pediatric cochlear implant users.